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Message-Id: <1204646548-27466-2-git-send-email-oakad@exemail.com.au>
Date: Wed, 5 Mar 2008 03:02:18 +1100
From: oakad@...mail.com.au
To: linux-kernel@...r.kernel.org
Cc: akpm@...ux-foundation.org, Alex Dubov <oakad@...oo.com>
Subject: [PATCH 01/11] memstick: introduce correct definitions in the header
From: Alex Dubov <oakad@...oo.com>
Thanks to some input from kind people at JMicron it is now possible
to have more correct definitions of protocol structures and bit field
semantics.
Signed-off-by: Alex Dubov <oakad@...oo.com>
---
drivers/memstick/core/memstick.c | 4 +-
drivers/memstick/core/mspro_block.c | 16 ++--
drivers/memstick/host/tifm_ms.c | 19 +++---
include/linux/memstick.h | 130 +++++++++++++++++++++++------------
4 files changed, 105 insertions(+), 64 deletions(-)
diff --git a/drivers/memstick/core/memstick.c b/drivers/memstick/core/memstick.c
index bba467f..5e0e960 100644
--- a/drivers/memstick/core/memstick.c
+++ b/drivers/memstick/core/memstick.c
@@ -271,7 +271,7 @@ void memstick_init_req_sg(struct memstick_request *mrq, unsigned char tpc,
mrq->data_dir = READ;
mrq->sg = *sg;
- mrq->io_type = MEMSTICK_IO_SG;
+ mrq->long_data = 1;
if (tpc == MS_TPC_SET_CMD || tpc == MS_TPC_EX_SET_CMD)
mrq->need_card_int = 1;
@@ -306,7 +306,7 @@ void memstick_init_req(struct memstick_request *mrq, unsigned char tpc,
if (mrq->data_dir == WRITE)
memcpy(mrq->data, buf, mrq->data_len);
- mrq->io_type = MEMSTICK_IO_VAL;
+ mrq->long_data = 0;
if (tpc == MS_TPC_SET_CMD || tpc == MS_TPC_EX_SET_CMD)
mrq->need_card_int = 1;
diff --git a/drivers/memstick/core/mspro_block.c b/drivers/memstick/core/mspro_block.c
index 423ad8c..214211c 100644
--- a/drivers/memstick/core/mspro_block.c
+++ b/drivers/memstick/core/mspro_block.c
@@ -629,7 +629,7 @@ static void mspro_block_process_request(struct memstick_dev *card,
param.system = msb->system;
param.data_count = cpu_to_be16(page_count);
param.data_address = cpu_to_be32((uint32_t)t_sec);
- param.cmd_param = 0;
+ param.tpc_param = 0;
msb->data_dir = rq_data_dir(req);
msb->transfer_cmd = msb->data_dir == READ
@@ -761,7 +761,7 @@ static int mspro_block_switch_to_parallel(struct memstick_dev *card)
.system = 0,
.data_count = 0,
.data_address = 0,
- .cmd_param = 0
+ .tpc_param = 0
};
card->next_request = h_mspro_block_req_init;
@@ -773,8 +773,8 @@ static int mspro_block_switch_to_parallel(struct memstick_dev *card)
if (card->current_mrq.error)
return card->current_mrq.error;
- msb->system = 0;
- host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_PARALLEL);
+ msb->system = MEMSTICK_SYS_PAR4;
+ host->set_param(host, MEMSTICK_INTERFACE, MEMSTICK_PAR4);
card->next_request = h_mspro_block_req_init;
msb->mrq_handler = h_mspro_block_default;
@@ -802,7 +802,7 @@ static int mspro_block_read_attributes(struct memstick_dev *card)
.system = msb->system,
.data_count = cpu_to_be16(1),
.data_address = 0,
- .cmd_param = 0
+ .tpc_param = 0
};
struct mspro_attribute *attr = NULL;
struct mspro_sys_attr *s_attr = NULL;
@@ -922,7 +922,7 @@ static int mspro_block_read_attributes(struct memstick_dev *card)
param.system = msb->system;
param.data_count = cpu_to_be16((rc / msb->page_size) + 1);
param.data_address = cpu_to_be32(addr / msb->page_size);
- param.cmd_param = 0;
+ param.tpc_param = 0;
sg_init_one(&msb->req_sg[0], buffer,
be16_to_cpu(param.data_count) * msb->page_size);
@@ -964,7 +964,7 @@ static int mspro_block_init_card(struct memstick_dev *card)
struct memstick_host *host = card->host;
int rc = 0;
- msb->system = 0x80;
+ msb->system = MEMSTICK_SYS_SERIAL;
card->reg_addr.r_offset = offsetof(struct mspro_register, status);
card->reg_addr.r_length = sizeof(struct ms_status_register);
card->reg_addr.w_offset = offsetof(struct mspro_register, param);
@@ -973,7 +973,7 @@ static int mspro_block_init_card(struct memstick_dev *card)
if (memstick_set_rw_addr(card))
return -EIO;
- if (host->caps & MEMSTICK_CAP_PARALLEL) {
+ if (host->caps & MEMSTICK_CAP_PAR4) {
if (mspro_block_switch_to_parallel(card))
printk(KERN_WARNING "%s: could not switch to "
"parallel interface\n", card->dev.bus_id);
diff --git a/drivers/memstick/host/tifm_ms.c b/drivers/memstick/host/tifm_ms.c
index 4fb2421..5b5bd61 100644
--- a/drivers/memstick/host/tifm_ms.c
+++ b/drivers/memstick/host/tifm_ms.c
@@ -209,7 +209,7 @@ static int tifm_ms_issue_cmd(struct tifm_ms *host)
host->cmd_flags = 0;
- if (host->req->io_type == MEMSTICK_IO_SG) {
+ if (host->req->long_data) {
if (!host->no_dma) {
if (1 != tifm_map_sg(sock, &host->req->sg, 1,
host->req->data_dir == READ
@@ -248,7 +248,7 @@ static int tifm_ms_issue_cmd(struct tifm_ms *host)
cmd_mask = readl(sock->addr + SOCK_MS_SYSTEM);
cmd_mask |= TIFM_MS_SYS_DATA | TIFM_MS_SYS_NOT_RDY;
writel(cmd_mask, sock->addr + SOCK_MS_SYSTEM);
- } else if (host->req->io_type == MEMSTICK_IO_VAL) {
+ } else {
data = host->req->data;
data_len = host->req->data_len;
@@ -294,8 +294,7 @@ static int tifm_ms_issue_cmd(struct tifm_ms *host)
cmd_mask |= TIFM_MS_SYS_NOT_RDY;
dev_dbg(&sock->dev, "mask %x\n", cmd_mask);
writel(cmd_mask, sock->addr + SOCK_MS_SYSTEM);
- } else
- BUG();
+ }
mod_timer(&host->timer, jiffies + host->timeout_jiffies);
writel(TIFM_CTRL_LED | readl(sock->addr + SOCK_CONTROL),
@@ -319,13 +318,13 @@ static void tifm_ms_complete_cmd(struct tifm_ms *host)
int rc;
del_timer(&host->timer);
- if (host->req->io_type == MEMSTICK_IO_SG) {
+ if (host->req->long_data) {
if (!host->no_dma)
tifm_unmap_sg(sock, &host->req->sg, 1,
host->req->data_dir == READ
? PCI_DMA_FROMDEVICE
: PCI_DMA_TODEVICE);
- } else if (host->req->io_type == MEMSTICK_IO_VAL) {
+ } else {
writel(~TIFM_MS_SYS_DATA & readl(sock->addr + SOCK_MS_SYSTEM),
sock->addr + SOCK_MS_SYSTEM);
@@ -365,7 +364,7 @@ static int tifm_ms_check_status(struct tifm_ms *host)
if (!host->req->error) {
if (!(host->cmd_flags & CMD_READY))
return 1;
- if ((host->req->io_type == MEMSTICK_IO_SG)
+ if (host->req->long_data
&& !(host->cmd_flags & FIFO_READY))
return 1;
if (host->req->need_card_int
@@ -505,7 +504,7 @@ static void tifm_ms_set_param(struct memstick_host *msh,
writel((~TIFM_CTRL_FAST_CLK)
& readl(sock->addr + SOCK_CONTROL),
sock->addr + SOCK_CONTROL);
- } else if (value == MEMSTICK_PARALLEL) {
+ } else if (value == MEMSTICK_PAR4) {
host->mode_mask = 0;
writel(TIFM_CTRL_FAST_CLK
| readl(sock->addr + SOCK_CONTROL),
@@ -542,7 +541,7 @@ static int tifm_ms_initialize_host(struct tifm_ms *host)
writel(0x0200 | TIFM_MS_SYS_NOT_RDY, sock->addr + SOCK_MS_SYSTEM);
writel(0xffffffff, sock->addr + SOCK_MS_STATUS);
if (tifm_has_ms_pif(sock))
- msh->caps |= MEMSTICK_CAP_PARALLEL;
+ msh->caps |= MEMSTICK_CAP_PAR4;
return 0;
}
@@ -601,7 +600,7 @@ static void tifm_ms_remove(struct tifm_dev *sock)
writel(TIFM_FIFO_INT_SETALL,
sock->addr + SOCK_DMA_FIFO_INT_ENABLE_CLEAR);
writel(TIFM_DMA_RESET, sock->addr + SOCK_DMA_CONTROL);
- if ((host->req->io_type == MEMSTICK_IO_SG) && !host->no_dma)
+ if (host->req->long_data && !host->no_dma)
tifm_unmap_sg(sock, &host->req->sg, 1,
host->req->data_dir == READ
? PCI_DMA_TODEVICE
diff --git a/include/linux/memstick.h b/include/linux/memstick.h
index 334d059..c104e72 100644
--- a/include/linux/memstick.h
+++ b/include/linux/memstick.h
@@ -22,6 +22,8 @@ struct ms_status_register {
unsigned char reserved;
unsigned char interrupt;
#define MEMSTICK_INT_CMDNAK 0x0001
+#define MEMSTICK_INT_IOREQ 0x0008
+#define MEMSTICK_INT_IOBREQ 0x0010
#define MEMSTICK_INT_BREQ 0x0020
#define MEMSTICK_INT_ERR 0x0040
#define MEMSTICK_INT_CED 0x0080
@@ -47,13 +49,17 @@ struct ms_status_register {
struct ms_id_register {
unsigned char type;
- unsigned char reserved;
+ unsigned char if_mode;
unsigned char category;
unsigned char class;
} __attribute__((packed));
struct ms_param_register {
unsigned char system;
+#define MEMSTICK_SYS_ATEN 0xc0
+#define MEMSTICK_SYS_BAMD 0x80
+#define MEMSTICK_SYS_PAM 0x08
+
unsigned char block_address_msb;
unsigned short block_address;
unsigned char cp;
@@ -90,16 +96,48 @@ struct ms_register {
struct mspro_param_register {
unsigned char system;
+#define MEMSTICK_SYS_SERIAL 0x80
+#define MEMSTICK_SYS_PAR4 0x00
+#define MEMSTICK_SYS_PAR8 0x40
+
+ unsigned short data_count;
+ unsigned int data_address;
+ unsigned char tpc_param;
+} __attribute__((packed));
+
+struct mspro_io_info_register {
+ unsigned char version;
+ unsigned char io_category;
+ unsigned char current_req;
+ unsigned char card_opt_info;
+ unsigned char rdy_wait_time;
+} __attribute__((packed));
+
+struct mspro_io_func_register {
+ unsigned char func_enable;
+ unsigned char func_select;
+ unsigned char func_intmask;
+ unsigned char transfer_mode;
+} __attribute__((packed));
+
+struct mspro_io_cmd_register {
+ unsigned short tpc_param;
unsigned short data_count;
unsigned int data_address;
- unsigned char cmd_param;
} __attribute__((packed));
struct mspro_register {
- struct ms_status_register status;
- struct ms_id_register id;
- unsigned char reserved[8];
- struct mspro_param_register param;
+ struct ms_status_register status;
+ struct ms_id_register id;
+ unsigned char reserved0[8];
+ struct mspro_param_register param;
+ unsigned char reserved1[8];
+ struct mspro_io_info_register io_info;
+ struct mspro_io_func_register io_func;
+ unsigned char reserved2[7];
+ struct mspro_io_cmd_register io_cmd;
+ unsigned char io_int;
+ unsigned char io_int_func;
} __attribute__((packed));
struct ms_register_addr {
@@ -110,49 +148,55 @@ struct ms_register_addr {
} __attribute__((packed));
enum {
+ MS_TPC_READ_MG_STATUS = 0x01,
MS_TPC_READ_LONG_DATA = 0x02,
MS_TPC_READ_SHORT_DATA = 0x03,
+ MS_TPC_READ_MG_DATA = 0x03,
MS_TPC_READ_REG = 0x04,
- MS_TPC_READ_IO_DATA = 0x05, /* unverified */
+ MS_TPC_READ_QUAD_DATA = 0x05,
+ MS_TPC_READ_IO_DATA = 0x05,
MS_TPC_GET_INT = 0x07,
MS_TPC_SET_RW_REG_ADRS = 0x08,
MS_TPC_EX_SET_CMD = 0x09,
- MS_TPC_WRITE_IO_DATA = 0x0a, /* unverified */
+ MS_TPC_WRITE_QUAD_DATA = 0x0a,
+ MS_TPC_WRITE_IO_DATA = 0x0a,
MS_TPC_WRITE_REG = 0x0b,
MS_TPC_WRITE_SHORT_DATA = 0x0c,
+ MS_TPC_WRITE_MG_DATA = 0x0c,
MS_TPC_WRITE_LONG_DATA = 0x0d,
MS_TPC_SET_CMD = 0x0e
};
enum {
- MS_CMD_BLOCK_END = 0x33,
- MS_CMD_RESET = 0x3c,
- MS_CMD_BLOCK_WRITE = 0x55,
- MS_CMD_SLEEP = 0x5a,
- MS_CMD_BLOCK_ERASE = 0x99,
- MS_CMD_BLOCK_READ = 0xaa,
- MS_CMD_CLEAR_BUF = 0xc3,
- MS_CMD_FLASH_STOP = 0xcc,
- MSPRO_CMD_FORMAT = 0x10,
- MSPRO_CMD_SLEEP = 0x11,
- MSPRO_CMD_READ_DATA = 0x20,
- MSPRO_CMD_WRITE_DATA = 0x21,
- MSPRO_CMD_READ_ATRB = 0x24,
- MSPRO_CMD_STOP = 0x25,
- MSPRO_CMD_ERASE = 0x26,
- MSPRO_CMD_SET_IBA = 0x46,
- MSPRO_CMD_SET_IBD = 0x47
-/*
- MSPRO_CMD_RESET
- MSPRO_CMD_WAKEUP
- MSPRO_CMD_IN_IO_DATA
- MSPRO_CMD_OUT_IO_DATA
- MSPRO_CMD_READ_IO_ATRB
- MSPRO_CMD_IN_IO_FIFO
- MSPRO_CMD_OUT_IO_FIFO
- MSPRO_CMD_IN_IOM
- MSPRO_CMD_OUT_IOM
-*/
+ MS_CMD_BLOCK_END = 0x33,
+ MS_CMD_RESET = 0x3c,
+ MS_CMD_BLOCK_WRITE = 0x55,
+ MS_CMD_SLEEP = 0x5a,
+ MS_CMD_BLOCK_ERASE = 0x99,
+ MS_CMD_BLOCK_READ = 0xaa,
+ MS_CMD_CLEAR_BUF = 0xc3,
+ MS_CMD_FLASH_STOP = 0xcc,
+ MS_CMD_LOAD_ID = 0x60,
+ MS_CMD_CMP_ICV = 0x7f,
+ MSPRO_CMD_FORMAT = 0x10,
+ MSPRO_CMD_SLEEP = 0x11,
+ MSPRO_CMD_WAKEUP = 0x12,
+ MSPRO_CMD_READ_DATA = 0x20,
+ MSPRO_CMD_WRITE_DATA = 0x21,
+ MSPRO_CMD_READ_ATRB = 0x24,
+ MSPRO_CMD_STOP = 0x25,
+ MSPRO_CMD_ERASE = 0x26,
+ MSPRO_CMD_READ_QUAD = 0x27,
+ MSPRO_CMD_WRITE_QUAD = 0x28,
+ MSPRO_CMD_SET_IBD = 0x46,
+ MSPRO_CMD_GET_IBD = 0x47,
+ MSPRO_CMD_IN_IO_DATA = 0xb0,
+ MSPRO_CMD_OUT_IO_DATA = 0xb1,
+ MSPRO_CMD_READ_IO_ATRB = 0xb2,
+ MSPRO_CMD_IN_IO_FIFO = 0xb3,
+ MSPRO_CMD_OUT_IO_FIFO = 0xb4,
+ MSPRO_CMD_IN_IOM = 0xb5,
+ MSPRO_CMD_OUT_IOM = 0xb6,
};
/*** Driver structures and functions ***/
@@ -165,7 +209,8 @@ enum memstick_param { MEMSTICK_POWER = 1, MEMSTICK_INTERFACE };
#define MEMSTICK_POWER_ON 1
#define MEMSTICK_SERIAL 0
-#define MEMSTICK_PARALLEL 1
+#define MEMSTICK_PAR4 1
+#define MEMSTICK_PAR8 2
struct memstick_host;
struct memstick_driver;
@@ -195,11 +240,7 @@ struct memstick_request {
unsigned char data_dir:1,
need_card_int:1,
get_int_reg:1,
- io_type:2;
-#define MEMSTICK_IO_NONE 0
-#define MEMSTICK_IO_VAL 1
-#define MEMSTICK_IO_SG 2
-
+ long_data:1;
unsigned char int_reg;
int error;
union {
@@ -231,8 +272,9 @@ struct memstick_host {
struct mutex lock;
unsigned int id;
unsigned int caps;
-#define MEMSTICK_CAP_PARALLEL 1
-#define MEMSTICK_CAP_AUTO_GET_INT 2
+#define MEMSTICK_CAP_AUTO_GET_INT 1
+#define MEMSTICK_CAP_PAR4 2
+#define MEMSTICK_CAP_PAR8 4
struct work_struct media_checker;
struct class_device cdev;
--
1.5.3.6
--
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